Mining machine



March 13, 192s.

/M. PMHOLMES MINING MACHINE Original Filed July 21, 1919 s sheets-sheet1 IIA g i IIIIII YIIIII Inf/ff 'y hi l, kk

March 13, 1928. 1,662,794

M. P. HOLMES .MINING MACHINE Original Filed July 21, 1919 3 Sheets-Sheet2 Ely-Z' March 13, 1928. 1,662,794 v l M. P. HOLMES MINING MACHINEOriginal Filed July 2], 1919 3 Sheets-Sheet 5 uw www.

Patented Mar. 13, 1928.

1,662,794 yUNITED STATES PATENT OFFICE.

MORRIS P. HOLMES, F CLAREMONT, ,NEW HAMPSHIRE, ASSIGNOR TO SULLIVANMACHINERY COMPANY, A CORPORATION 0F MASSACHUSETTS.

MINING MACHINE.

Original application led July 21, 1919,

My invention relates to mining machines. An object of my yinvention isto rovide an improved mining machine. Anot er object of my invention isto provide an im-v proved mining machine of improved construction andone which is atthe same time more flexible in its operation and moreconveniently controlled. A furtherobject of my invention is toy provide.an improved and simplified feeding mechanism fory such a machine, saidfeeding mechanism being operatively connected in an improvedmanneradapted to improve both the feeding and cut-ting operations. A stillfurther object of my invention is to provide an improved mining machineadapted to be manufactured at a materially decreased cost and equippedwith improved cooperating cutter drive, feeding, and truckV drivingmechanismcooperating in an improved manner during cutting, feeding, ortransport and controlled by improved controlling mechanisms. Stillanother object of my invention isto provide an-improved mining machineof ex- 4 25 ceedingly compact form wherein the feeding drums aredisposed within the lateral limits of the machine frame.` These andother objects and advantages of my invention will, however, Vhereinaftermore fully appear.

In the accompanying 'drawings I have shown for purposes of illustrationone form which my invention may assume in practice.

In these drawings,--

Fig. 1 is a plan view of the mining machine, the feeding and controllingmechanism being shown in section.

Fig. 2 is a transverse vertical sectional viewk taken substantially online 2-2 of Fig. 1.

Fig. 3 isa transverse horizontal sectional view taken Fig. 2.

Fig. 1 is a detail sectional view taken substantially on line 1--4 ofFig. 1.

Fig. 5 is a diagrammatic view showing the different positions of themachine during the cutting operation in a room or the like.

Fig. 6 is a diagrammatic view similar to that shown in Fig. 5 with themachine cutting in the opposite direction. l

In this illustrative disclosure, whichis a division of my copendingyapplication Ser. No. 312,346, filed July21, 1919, it will heresubstantially on line .3-3 of Serial Noi 312,346. Divided and thisapplication filed December 11, 1924. vSerial N0. 755,259.

in be observed that I have shown a mining machine of the room and pillartype including a frame or casing 1 providedwith a bottom plate or shoe 2adapted to support the machine and slidable upon the mine bottom or aytransport truck, not shown, in a well known manner. l As shown thisframeis provided with a rigid cutter bar 3 as is usual with machines ofthe type mentioned and this bar carries a cutter t"hain 4 equipped withcutter bits 5 and rotatable around the bar by means of a cutter chaindrivin sprocket 6 located within the frame and herein preferablyadjacent the rear end thereof through which the cuttings discharge. Asillustrated, the machine frame alsoA carries a motor which maybe of anysuitable type, herein a horizontal longitudinally extending reversibleelectric motor, having an armature 7 and controlled by any. suitablecontroller mechanisms 8 and 9. The armature 7 of this motor is hereinyoperatively connected through improved mechanism, hereinafterdescribed,- to the cutter chain driving sprocket 6 and is alsooperatively connected, through other improved operative connectionslikewise hereafter de` scribed, to selectively operative feeding'andcontrolling members l10 and 11, herein in the form of winding drums, andto a truck driving member 12, herein in the form of a chain sprocket,the construction being such that through flexible feeding means, hereinfor illustrative purposes shown in the form -of feeding cables 13 and14, and operatively connected to the. feeding members 10 and 11,respectively, and guided by cooperating guiding members, herein in theform of idler rolls or sheaves 15, 16, and 17, the machine is adapted tobe propelled'by its own power relative to the mine bottom or to itstransport truck, in a well known manner, while through a suitable chainconnection, not shown, operatively connectible between the member 12 andthe wheels of the transport truck, the machine is adapted to propel thetruck when mounted in transport position thereon. It will herein beobserved that the guide roll 15 may be transposed to the opposite sideof the machine frame when the machine iscutting from left to right.

It will herein further be observed that the motor armature 7 is providedat its rear end with a bevel pinion 19,hferein meshing Vit will alsolmeshvfith an internal gear V31, which` is with a horizontally disposedlower bevel gear 20, which, as shown in Fig. 2, is in turn rotatablymounted in suitable bearings 21 at the upper end of a vertical stud 22having its lower endthereof extending through suitable adjustablebearings 23 and supported on the shoe 2 at the rear end of the latter.The bevel gear `2O in turn is fixed, herein by a key 24, to a sleeve 25likewise external to the bearings 21 and coaXially disposed with androtatable relative to the stud 22 and having a pinion 26 on the lowerreduced portion of the sleeve. with a plurality of slightly largerpinions 27, herein three, disposed radially thereabout and rotatablymounted as on removable bearing members 26 carried on a rotatable spider29 which, in turn, has an upstanding rotatable sleeve 30 disposed coaX-ially with the stud 22 and between the same and the pinion 26 and thegear 26. Herein, be observed that the pinions 27 journaled on the lowerend of the stud 22 and preferably integrally united as by screws 32 withthe cutter chain driving sprocket 6 likewise journaled on the/stud.Thegear 81 is herein also provided with a depending portion 33 having afia-nge 34 at is periphery running close to the inner edge of a flangeformed on the frame 1, the construction being such that the entry ofcuttings or the' like into the gearing is eifectually prevented. Herein,attention is also directed to the -fact that the outer periphery 36 ofthe gear 31 is adapted to be engaged by frictional controlling means,herein inthe form of a brake band 37, having one end operativelyconnected to the frame, as at 38, and its other end connected to athreaded controlling member 39 (see Fig. 4) threaded in the bushing 4()extending through a suitable aperture in the side of the frame andcontrolled by a nut 43 rotatable by a hand wheel 42 on the outside ofthe frame. As a result of this construction it will be observed that thecutting chain driving sprocket 6 may be rotated or remain idle while themotor` is running, the cutter chain driving sprocket being adapted to bedriven at full speed when the member 29 is held stationary. y i

lOperatively connected to the cutter chain driving mechanism is improvedcooperating feeding means adapted to drive the feeding and controllingdrums 10 and 11. As shown, the sleeve 30 on the spider 29 carries on itsupper end a small bevel pinion 45 which, in turn, constantly meshes withcorresponding bevel gears 46 and 47. The gears 46 and 47 are hereinspaced apart by a spacing and bearing member 48 formed on the uppervendof the stud 22 and are freely rotatable on a shaft 50 disposedtransversely of the frame, as shown in Fig. 1. Herein the gear 47 is Thepinion 26 meshes i mechanism also. suitably rigidly connected, as by ausual semi-permanent clutch or other connecting means 49 to a rotatabledriving member 51 Y' herein carrying thereon one of the elements of afriction clutch 52 and cooperating with an outer clutch casing lmemberrupon` which the drum 10 is formed. The member 53 is in turn journaled,as at 54, in a suitable closure member 55 carried at the side of themachine frame. Herein, the gear 47 has an annular chamber 56 thereinreceiving an adjustable friction controlling member 5.7

adapted to compress or release the elements of the frictionclutch 52 atwill and thereby cause the feeding drum 1() to be rotated with the gearwhen the friction Vis loaded or to enable thegear to rotateindependently of the ydrum 10 when the friction is released. Referringback to the gear 46, will be noted that this gear is similarlyconnected7 f as by a usual semi-permanent clutch or other connectingmeans 58.*w1th a driver member 59 carrylngone of the elements of `africtional clutch 60, the other elementof the latter being,`asheretofore, carried by a casing member 61 upon which the drum 11'isformed. The member 61y is journaled, as `at 62, in-a closure member 63,similar to the member 55, carried bythe opposite side of the machineframe. The gear 46 is likewise u' ter chain when the frictions 52 and6() are y used and the brake band 37 is set, the speed of the feed thenobtained, i. e., when the cutter chain is not in` operation, ismaterially greater than the cutting speed obtainable when the brake band87 isVu released, i. e., when the cutter chain is in operation.

Operatively connected with t-he feeding mechanism, herein through thefriction clutch 60, lis improved truck driving mechanism adaptedoperatively to connect or disconnect the truck driving member 12. Asshown, this member 12 is provided with a sleeve 66 receivable on acorresponding sleeve 67 on a sleeve member 68 which is suitably fixed,as by a key 69, to the clutch casing member 61 and rotatable with thelatter. Here it will also be observed that clutch teeth V70 are providedon adjacent surfaces of the members' 12V and 68, and that the member 12is provided with a suitable mechanism 71, similar to that disclosed inmy copending application mentioned above, wheremesma bythe member 12`maybe forced" outwardly relative to the-member 68 to disengage the clutchteeth when-desired, for instance during thecutting operation or duringythe ltruck loading or unloading operation. Itis t-hus possible when themachine is on: its transporttruclrto connect the member 12 to the memberG8 andconsequently to the casingl upon Which the drum 112is formedinsuch manner as to drive the member 12 at a fast speed'through thefriction mechanism 6(), it of course being understood that during thistruck driving operation the brake band 37 is set tight in such manner asto prevent movement of the cutter chain driving sprocket 6.

Cooperating withthe friction mechanism, hereinV above described, isimproved'means for controllingthe same whereby 'the facility ofl controlis enhanced and the effortV required by the operator is materiallyreduced. These mea-ns, as shown herein, are of tliepressure fluid type,the annular chalutiers 5G`and 64 in the gear members 47 and 46' being inthe form ofcylinders and the movable friction controlling members 57 andbeing in the form ofpistons movable in said cyl` inders under. theinfluence of pressure fluid.y herein, pressure liquid such as oiladmitted thereto through oppositely locatedports 72 and73 formed in themembers 47 and 46 respectively and which communicate with an Aaxialchamber 75 in the' shaft 49. It will also be noted that disposed in thischamber 75 is a. plurality of coaxially andoppositely disposed pistons76 and 77k providedwvith operating rods 78 and 79 connected through suitable mechanism, heretofore described in my copending application Ser.No. 312,346, by suitable coaXially arrangedhand Wheels 8O and 81. By theprovision of such a mechanism it will be observed that it is possible tocontrol the frictions substantially asV above set forth by adjustment`of the hand Wheels SOand 8l. More particularly it will be noted that thetivopistons and 77 may be` simultaneously moved toward one another oraway therefrom by adjustment, of the hand Wheel 81 when the handvvheelSO is heldsta-tionary, and that the rod 7 9 will be adj ustedbodily With the pistons in either direction when the hand Wheel 814 isheld, stationary andthe hand Wheel SO isrotated. Thus it will beobserved that through movement of the hand'ivheelv 80 the rzod'79 maybe, adjusted bodily tobringthe desired piston 76, 77 into fullfacecontact- With the oil and thereafter through` operation of. the handvWheel 81, thisdesired piston may be adjustedrelative to the. rodin suchmanner as tosubjectthe oil to the desired pressurenecessarytocauseloading of the frictions. Ofy course both pistons may.simultaneously be caused -to exert pressure on the oilrto effectsimultaneous clutch loading, it being possible by sepa-ratelorsimultaneous adjustments oflt-hehand Wheels'to produce any-desiredeife'ct. It will also'fbe noted that thefric'-` tions 52 and 60 areprovided with suitable eral limits of t-hc machine frame in such man-neras to reduce the Width of the latter.

In the operation ofmy improved mining machine, cutting from 'right tolefti as shown in Fig. 5, it will hereiny be observed that the free endlof the cable 13 is secured' at the face of the coal by means ofasuitable jack A. The clutch 52 controlling the drum 10 is then thrownin. Winding in the cable'13 at the desired speed and the cutter bar` 3is sumped from the full line position, in under the face of the coal.The receding or controlling'cable 14 is then connected adjacent theright handrib by means of a usual jack lor take-upmechanism B and thefeed cable 18" is then connected to the jacltrAv which has been moved tothe left hand rib. The

machine* mayjthen be straightenedup in anyofFig. 5, by means ofthe takeup B, by

the use of a ack, or by bringing thev machine to the desired angle bythe drum 11 an'dlthen completing thefcut. The take-up B maybe utilizedfor angling the machine during the transverse cut, if desired. Themachine is then Withdrawn from the face by means of the drum 10, in theusual manner. 'During the cutting operation from left to right, asshownin Fig; 6, the driving motor and the relative position of thecutter bits is reversed and the cable 14 connected to the drum 11, Whichduring this operation is the feeding drum, is connected at the 'taf-e tothe usual jackv A. After the s-umpingcut the cable 13 connected to the'drum 10 is connected at' the left hand rib by means of a usual jackor'take-up mechanism B While the jack A ismovedto the rightv hand rib.The machine isy then moved: transversely across the face and withdrawnfrom the coal in a manner substantially similar to that described aboveduring the right to left` clutch 52 controlling the drum 10 and applyingthe clutch 60, andreversing the motor 7, thus causing the controllingdrum 1l to act as a take-up member to wind in the cable 14 and therebypull the rear end of the machine toward the right hand rib. If it isdesired to angle the machine when cutting from left to right, as shownin Fig. 6, the brake band 37 may be applied, thus preventing rotation ofthe sprocket 6the clutch G() released and the clutch 52 applied7 themotor 7 reversed, and the take-up drum 10 may then wind in the cable 13,pulling the end of the machine toward the left hand rib.

` As a result of my improved construction a mining machine is providedhaving improved cutting, feeding means, and controlling mechanismwhereby the machine may be operated in opposite directions with greaterfacility. It will further be noted that im roved truck driving mechanismis provi ed which cooperates directly with the feeding mechanism. Itwill further be noted that a feeding and cutting mechanism ofexceedingly simple and compact character Y is provided whereby thefacility of operation of the cutting and feeding mechanism issubstantially increased and wherein the lateral limits of the machinearesubstantially decreased. These and other objects and advantages of myimproved mining machine will be clearly apparent to those skilled in theart. i

While I have in this application specifically described one form'whichmy invention may assume in practice, it will be understood that thisform of the same is shown for purposes of illustration and that theinvention may be modified and embodied in various other forms withoutdeparting from its spirit or the scope of the appended claims.

`What I claim as new and by Letters Patent is: p

l. In a mining machine, :feeding mechanism including a shaft, a feedmember and a controlling member each disposed coaxially with said shaft,said feed and controlling members being relatively rotatable and desireto secure `each adapted to cooperate directly with flexible feedingmeans during machine feeding and to cooperate in effecting guidedmovements of the machine, and friction means operable to effectsimultaneous independent control of said members.

2. In a mining machine, feeding mechanism including a feed operatingmember and a controlling member each ofwhich is adapted to cooperatedirectly with flexible feeding means, and means including a separatefriction controlling clutch for each of said members to effectsimultaneous rotation of said members at the same speed in oppositedirections.

In a mining machine, feeding mechanism including a feed operating memberand a controlling memberV having separate flexible feeding elementscooperating therewith, and means including a separate frictioncontrolling clutch for each member to simultaneously rotate said membersin opposite directions to respectively wind in and pay out said elementseach at a predetermined slow speed..

4. In a mining machine, feeding mechanism including a shaft, a pluralityof coaxial relatively rotatable feeding members each adapted tocooperate directly with fieX- ible feeding means, andl a plurality offriction clutches arranged coaxially with said shaft for independentlycontrolling said members, one of said clutches being individual to thecontrol of one of said members and the other to the control of theother.l

5. In a mining machine, a machine frame slidable on the mine bottom,cutting mecha.- nism carried thereby including anelongated plane cutterbar, and mechanism for feeding said cutter bar laterally comprising aVshaft. coaxial feeding drums thereon, and a plurality of frictionclutches arranged coaxially with said shaft for independently or v`simultaneously controlling said drums.

6. In a mining machine, feeding mechanism including a shaft, coaxialfeeding drums thereon, and a plurality of friction clutches arrangedcoaxially with said shaft for simultaneously operating said drums at Ythe same speed in opposite directions.

7. In a mining machine, a machine frame slidable on the mine bottom,cutting mechanism carried thereby including an elongated plane cutterbar, and mechanism for feeding said cutter bar laterally comprising ashaft, coaxial feeding drums thereon, and a pluralitv of frictionclutches arranged within said drums coaxially with said shaft forvariably controlling said drums.

8. In a mining machine, a machine frame slidable on the mine bottom,cutting mechanism carried thereby including an elongated plane cutterbar, and mechanism for feed-V ing said cutter bar laterally .comprisinga shaft, coaxial feeding drums disposed thereon, and a plurality offriction clutches forA controlling the operationof'said drums, and meansarranged coaxially with said drums for simultaneously or independentlycontrolling said clutches. y

' 9. Ina mining machine, a machine frame Vlio slidable .on .A the Vminebottom, cutting `imechanism carried thereby includingy an elongatedplane cutter bar, :and mechanism V for kfeeding said cutter barlaterallycomprising a,

shaft, coaxial. feeding. drums .disposed thereon, ar plurality `ofifriction clutches disposed Within said drums for controllingtheoperation ofthe same, and means arrangedcoaxially Withsaid drumsl.for simultaneously or independently controlling said clutches.

10. In a mining machine lincluding a machine frame, cutting mechanismcarried thereby :including an elongated plane cutter banand mechanismfor feeding said cutter vbar laterally including a feed operating drumand a controlling drum disposed v vithin said machine frame, and"contro'lllin'g means for said Vdrums arranged coaxially therewith.A

v11. ,In a mining machine `including a machine frame, cutting mechanismcarried thereby including an elongatedplanecutter baia-and mechanismyfor feeding said cutter bar laterally including fa feed operating drumand acontrolling drum disposed Within the `limits of said frame, cablescooperating ivith said drums, and :controlling means for .said drumsarranged coaxially there- With. A

12. VIn a mining maehine, y a -machine frame, 'cutting mechanism carriedthereby including an elongated plane cutter bar,and mechanism foryfeeding said cutter lbar'laterally' including fafhori'zontally disposedrelatively rotatable feed operating shaft, and controlling members.disposed coaxially therewith and eachadapted 'to cooperatedirectly Withflexible feeding means, and friction means operative to independentlycontrol said members.

13. In a mining machine, a horizontally disposed shaft, coaxial'feedi'ngdrums disposed vthereon,` ra y,plurality of friction clutches disposedWithin saiddrums 'for controlling' the operation of` the same, and meansarranged coaxially Withysaid drums for simultaneously. or 'independentlycontrolling said clutches. i

14. In as mining machine, vfeeding mechanism including a shaft, feed andcontrolling members rdisposed Acoaxially therewith each adapted tocooperate with, flexible feeding .means, and hydraulicy means forcontrollingsaid members. a l

l5. In a.y mining machine, feeding mechanismincluding a shaft, feed .andcontrolling members disposed kcoaxial-ly therewith Veach adapted vtocooperate "With fiexible` feeding means, and hydraulic means forcontrolling said members disposed Within' said shaft. s

I6. lIn .aY mining machine, feedingy mechanism including a shaft, feed.and controllingmembers disposed coaxially therewith each adapted tocooperate With flexible feeding means, andia plurality of hydraulicallyoperative .fric-tion clutches for ycontrolling said members. L v V 17.In amining machine, a feed yoperating membery and a controlling 4membereach adapted to cooperate directly with flexible fee/ding means, drivingmeans therefor vin cluding a pair of frictions disposed coaxially Withsaid members, and means for simultaneously `driving said members inopposite directions at the same speed. A

V18. Inia mining, machine, a feed operating member vand a controllingmember .each adapted to cooperate directly with flexible feedingmeans,driving means therefor including a pair of frictions disposed coaxiallywith said members, and means for simultaneously-driving said members inoppositedirections .at variable speeds. v

Inla mining-machine, `feeding means includingafeed operating member, acontrolling member, said members each .being adapted to cooperate Withflexible feeding means, frictionally controlled feeding mechanismtherefor including `a plurality of frictions,andpressure fluid actuatedcontrolling means for each ofsaid frictions 20. In a mining emachine, africtionally controlledjfeeding ymechanism including a pluralityoffrietions, a feedingmember and a controlling member driven thereby, saidmembers yeach being [adapted to `cooperate With flexible .feeding means,and "hydraulic controlling means adjustable -to `control either orbothfof said frictions, y i

l21. In a miningV machine, .frictionally lcontrolled feeding mechanismincluding aplurali-ty of frictions, ai feeding member and a.controllingmember, said` members each kbeing adapted to cooperate withflexible feeding means, and pressure iiuid actuated con trolling meansoperative `to apply leither of said frictions lseparately or' bothPsimultaneousl'y includinga plurality of independently operablecontrolling members.

22. The combination with ,a mining machine, of fe'edingmechanismincluding a feed oper-ating member and #a controlling member, saidlmembers each being adapted to cooperate With flexible feeding meansAand being relatively' rotatable, cutting rmechanism, and reactiondriving mechanism between saidl feeding-mechanism and saidcuttingmechanism.

23. The combination With a mining machine, of feeding mechanismincluding -a feed operating memberA and a controlling member, saidmemberseach being adapted to` cooperate with fiiexible .feeding meansand `.being relatively rotatable, cutting `mechanism, andvariablereact-ion driving mechanism -between said feeding mechanism-and saidcuttingmechanism. A24. The'combination With .a mining machine, offeeding mechanism including aifeed operating-member anda controllingmemlili) ilu ber, said members each being adapted to cooperate Withflexible feeding means, cutting mechanism, and mechanical meansoperatively connecting the same for decreasing the speed of one upon anincrease in speed of the other. v

25. The combinationvvith a mining ma` chine, of feeding mechanismincluding a feed operating member and a controlling member, said memberseach being adapted to cooperate With flexible feedingv means, cuttingmechanism, and variable speed mechanism between said feeding mechanismand said cutting mechanism to cause the speeds of said members and saidcutting mechanism to vary inversely.

26; In a mining machine, the combination including a motor,` a feedoperating member and a controlling member each adapted to cooperatedirectly With flexible feeding means, cutting mechanism, and variablespeed mechanism between said cutting mechanism and said members drivenby said motor and operative to causethe speeds of said members and saidcuttingl mechanism to vary inversely proportionally 4While the motorspeed remains substantially constant.

27. The combination With a mining machine, cutting mechanisnn feedingmechanism including a feed operating drum and a controlling drum, andfeed gearing 1associated therewith directly controlled by the reactionofsaid cutting mechanism.

28. In a mining machine, feeding mech-` anism including a feed operatingfriction clutch, a talreup friction operating clutch, and a supplementalclutch adjustable at Will to retard either of said clutches to vary thefeed accomplished thereby.

29. In a mining machine, feeding mecha- Y nism including a frictionalfeed device and a frictional takeup device, and a cooperating frictionaldevice adapted to retard said feed and takeup frictional devices to varythe rate of feed of said machine.

30. In a mining machine, feeding mechanism including a frictional feeddevice, a frictional takeup device, and a cooperating Vfrictional deviceadjustable at Will and` adapted to vary the effect of 'both said feed,and takeup frictional devices.

either direction of feed extending in opposite directions from theopposite ends of the frame and When feeding in different directionshaving different portions forming the advance portion` and Wound in bydifferent feed operating members to Whichthey are respectivelyindividual, and actuating and controlling means for said 'feed operatingmembers carried on said machine operative to permit vpaying out of oneof said portions at a different rate from that at Which the other isWound in.

3 The combination with a mining machine having cutting mechanismincluding a cutter chain carrying cutter bar and means for effectingcirculation of said chain in opposite directions relative to said bar tocut and clear a kerf during lateral feeding in either direction, afeeding mechanism for propelling the same laterally along a face ineither direction during cuttingincluding a plurality of feed operatingmembers respec-v tively adapted to propel the machine laterally duringopposite directions of operation of the cutting mechanism, flexiblefeeding means including flexible feeding portions in either direction offeed extending in opposite directionsfrom the opposite ends of the frameand When feeding indifferent directions having different portionsforming the advanceportion and Wound in by different feed operatingmembers to which they are respectively individual, and actuating andcontrolling means for said feed operating members carried on saidmachine operative to permit paying out of one of said portions at afaster rate than that at which the other is Wound in.

33. In combination, in a mining machine having cutting mechanismincluding a cutter chain carrying cutter bar provided with a circulatingcutter chain operative when propelled in opposite directions relative tosaid bar to cut and clear'a kerf during lateral feeding in oppositedirections, a motor and means for propelling said, machine in oppositedirections across a mine face during cutting in opposite directionsincluding a pair of like relatively rotatable feed operating membersrotating on horizontal axes at opposite sides of said machine frame andeach adapted to cooperate directly with flexible feedingfmeans, andactuating and controlling'means therefor driven by said motor includinga driving member rotated in opposite directions on reversal of saidmotor and means for operatively connecting either of said feed operatingmembers thereto for driving thereby. u

34. In combination, in a mining machine having cutting mechanismincluding' a cutter chain vcarrying cutter bar provided With acirculating cutter chain operative when propelled in oppositedirections'relative to said bar to cut and `clear a `kerf during latloolli

driven by said motor including a member ro-` tated in oppositedirections on'i-'eversal of said motor vand means for operatively connecting either of said feed operating members theretofordriving'thereby.

35. In a 'mininr machine,'the'combination including reversi le cuttingmechanism including a cutter chain havingreverse cut- 'ting elementsoperative on driving of said chain inreversedirections tolcut and clearakerf when said machine is propelled in opposite Adirections across aface and a cutter cliain'driving sprocketcooperating with said Vcutterchain'to actuate the same, a motor disposed in advance of'said cutterchain ldriving sprocket, and means for propelling said machine at equalspeeds in opposite directions during cutting'across a face including aplurality of relatively :rotatable like feed operating members rotatableon horizontal transversely extending axes at opposite sides of themachine frame tothe rear of said motor and each adapted 'to-cooperatedirectly with flexible feeding means, and means driven by said motorl`for actuating salid -feed operating members including a shaft to theVrearofsaid motor andin'eans for selectively connecting said lfeedoperating members in driven 're-lation -to said shaft.

36. 'In a mining machine, 'the combination including reversible cuttingmechanism in cluding 'a cutter chain having reverse cutting elementsoperative on `drivingof said vchain in reverse directions to cut andclear -a kerf Vwhen said machine is :propelled in opposite directionsacross a faceand a cutter chain driving sprocket cooperating With saidcutter chain to actuate the same, a motor disposed in advance of saidcutter chain driving sprocket, and means for propelling said machine'atequal speeds in opposite-directions during cuttingacross afaceincludlinga plurality of relatively rotatable like feed, operating membersrotatable onhori- "zontal transversely extending axes at opposite `sidesof the machine frame tothe rear of said motor and each adapted tocooperate directly ywith flexible feeding means,

land means driven by said motor for actuating said feed operatingmembers including a shaft tothe rear of said motor and means forselectively connecting said feed operating members in driven relation tosaid shaft includingclutch meansslidable transversely of said machine.

37; In a mining fmachine, 1the=-combination 'including reversiblecutting iine'chanism- Eincluding a cutter chain vhaving reverse cuttingelements operativeon driving offsaid chain in reverse directions to cutandclear a kei-f when said machine =is propelled in opposite directionsacross a face anda cutter chain driving sprocketcooperating wvitli saidcutter chain to actuate 'the-saine, a inotor disposed in advance of saidcutter chain driving sprocket, and means for `propelling Said machine atequal speedsjin opposite Idiiections vduring cutting across `a facevincluding afpluiality of relatively rotatable like feed operatingmembers rrotatable onvhorizontal transversely extending axes Yatopposite sides of the machine iframe to "the rear of said motor and eachadapted #toicooperate directly `with flexible feeding means, and-meansdriven bysaid motor -forLaot'uating said feed operating membersincluding va shaft to the rear of said motor and means for selectivelyconnecting-'said feed operating members in dri-ven relation yto saidshaft vincluding clutch means 'fat opposite sides of the center line ofsaid inachineand irecprocable transversely of ithe machine to connectVthe elements operatively controlled hereby in driven relation to saidshaft.

38. The combination With a `mining Iinachine having reversible cuttinglmiechaiiisiii, of feeding mechanism for propelling fthe `sainelaterallyalong a face in either direc,-A -tion during cuttingincluding'apluralityfof rei'atively rotatable feedoperating members eachadapted to propel-the machine laterally during afdi-fl'eren't directionofoperation'o'f said cutting mechanism, and flexible feeding meansincluding flexible feeding portions in either direction of feedextending inoppo- `site directions ffrom the opposite ends of'said`frame and Whenfeeding in different directions having diflerent portionsformingthe advance portion `and-=vroi1iid yin by different lfeedoperating 'members "to Which vthey are respectively individual.

39. The combination Witlia mining `machine having reversible f cuttingmechanism,

'of Vfeeding mechanism forv propelling :the

saine laterally along a face in either direc- "tionduring cuttingincluding a. vplurality of relatively rotatable feedoperatingmembers-rotatable on transverse axes on vopposite sides of'said machineframe each adapted to propel the machine laterally during a differentdirect'ionof operation of said cutting mechanism, and yflexible feedingmeans including iiexible feeding portions vin either direction y of feedextending in opposite directions from the opposite ends of saidframe and`when 'feeding .in different directions having different'portionsforming the advance portion and Wound in yby different feed peratingmembers lto kvvliicli they are respecltively p individual.

Wfl)

"fiat Y tion of operation of said cutting mechanism,

and flexible'feeding means including flexible feeding portions in eitherdirection of feed extending in opposite directions from the oppositeends of said frame and when feeding in different directions havingdifferent portions forming the advance por-` tion and wound in bydifferent feed operating members to which they `are respectivelyindividual. Y

41. The combination with a mining machine having reversible cuttingmechanism,

of feeding mechanism for propelling the same laterally along a face ineither direction during cutting including a plurality of relativelyrotatable feed operating inembers of the same size rotatable ontransverse axes on opposite sides of said machine frame each adapted topropel the machine laterally during a different direction of operationof said cutting mechanism, and flexible feeding means including flexiblefeeding portions in either direction of feed extending in oppositedirections from the opposite ends of said frame and when feeding indifferent directions having different portions forming the advanceportion and wound in by different feed operating members to which theyare respectively individual. y i

42. The combination with a mining machine having reversible cuttingmechanism, of feeding means therefor including a plurality of relativelyrotatable feed operating members of the same size respectively adaptedto propel the machine laterally in opposite directions, flexible feedingmeans including a plurality of flexible feeding portions one individualto each of said feed operating members, and guiding means for saidportions, said feed operating members rotating in opposite directionsdepending upon the direction of rotation of said cutting mechanism.

43.`The combination with a mining machine slidable on a mine bottom andhaving reversible cutting mechanism, of flexible lateral feedingmechanism therefor including a plurality of relatively rotatable cabledrums, a plurality of flexible feeding `members, one individual to andwound on each of said drums and disposable laterally, andguiding meansdisposed on said machine and cooperating with said flexible feedingmembers, said mechanism having provision for feeding said machinelaterally in opposite directions under the propulsion of different drumsand during operation of said cutting mechanism in oppositeV directionsand provision whereby during opposite lateral feeding movements'eitherof said flexible feeding members may act as the advancing member whileits .fellow acts .as the receding member. i

44. The combinationl with a mining machine slidable on a mine bottom andhaving reversible cutting mechanism, of flexible lateral feedingmechanism therefor including a plurality of relatively rotatable cabledrums disposed on transverse axes on opposite sides thereof, a pluralityof flexible feeding members, one wound on and individual to each of saiddrums and disposable laterally, and guiding means disposed on saidmachine and cooperating with said flexible feeding members, saidmechanism having provision for feeding said machine laterally inopposite directions under the propulsion of different drums and duringoperation of said cutting mechanism in opposite directions and provisionwhereby during opposite lateral feeding movement either of said flexiblefeeding members may act as the advancing member while its fellow acts asthe receding member.

45. rIhe combination with a mining machine slidable on its bottom on a`mineibottom and having reversible cutting mechanism, of flexible lateralfeeding means therefor including a plurality of relative rotatable cabledrums of the same diameterfand rotatable on transverse axes and disposedon opposite sides of said machine, a plurality of flexible feedingmembers each cooperating with and individual to one drum and disposablelaterally, and guiding means cooperating with each flexible feedingmember, said mechanism having provision for feeding said machinelaterally in opposite directions under the propulsion of different drumsand during operation of said cutting mechanism in opposite directionsand provision whereby during oppositeV lateral feeding Vmovements eitherflexible feeding member may act as either the advance or receding memberwhile its fellow acts as the receding or advance member. i

46. The Acombination with a mining machineslidable on a mine bottom andhaving reversible cutting mechanism, of flexible lateral feedingmechanism therefor including a plurality of relatively rotatable cabledrums, a plurality offlexible feeding members, one individual to andwound oneach of said drums and disposable laterally, and guiding meansdisposed on said machine and cooperating with said flexible feedingmembers, said mechanism having provision for feeding said machine underthe propulsion ofydifferent drums laterally in opposite directions atthe saine speed during operation of said cutting inechanism'in oppositedilll) rections and provision whereby during opposite lateralfeedingmovements either of said flexible feeding members may act as theadvancing member while its fellow acts as the receding member.

47. The ,combination with a mining mac-hiiie slidable on a mine bottomand having reversiblefcutting mechanism, of flexible lattei'al feedingmechanism therefor including a lplurality of ielatively rotatable cabledrums disposedon transverse. axes on opposite sides thereof, a pluralityof flexible feeding members, one individual to and wound on each of saiddrums and disposable laterally, and guiding means disposed on saidmachine and cooperating with said flexible feeding members, saidmechanism having provision for feeding said machine under the propulsionof diferent drums laterally in opposite directions at the samev speed`during operation of said cutting mechanism in opposite directions andprovision whereby during opposite lateral feeding movements either ofsaid flexible feeding members may act as the advancing member while itsfellow acts as the receding member.

48. The combination with a mining machine slidable on its bottom on amine bottom and having reversibleciitting mechanism, of flexible lateralfeeding means therefor including 'a plurality of relatively rotatablecable di'uins of the saine diameter and rotatable on transverse axes anddisposed on opposite sides of said machine, a plurality of flexiblefeeding members each coopei'ating with and individual` to one drum anddisposable laterally, and guiding means cooperating with each flexiblefeeding member, said mechanism having provision for feeding said machineunder the propulsion of different drums laterally in opposite directionsat the same speed during operation of said cutting mechanism in oppositedirections and provision whereby during opposite lateral feedingmovements either flexible feeding membei may act as either the advanceor receding member while its fellow acts as the receding or advancemember.

49. The combination with a n'iiningmachine slidable on a mine bottom andhaving reversible cutting mechanism including a rigid stationary cutterbarand a rotatable cut-ter chain thereon, of flexible. lateral feedingmechanism therefor including a plurality of relatively rotatable cabledrums, a plurality of flexible feeding members one wound on each of saiddrums and individual thereto and disposable laterally, and guiding meansdisposed on said machine and cooperating with said flexible feedingmembers, said mechanism having provision for feeding said machine underthe propulsion of different drums, l

laterally iny onedirection during rotation of said cutter chain in onedirection and in the opposite direction during rotation of said chain.in theopposite direction and provision whereby during lateral feeding indifferentdirections a different flexible feeding member acts as theadvancing member while its fellow acts as the receding member.

50. The combination with a mining machine slidable on a mine bottom andhaving reversible cutting mechanism including a rigid stationary cutterbai' and a rotatable cutter chain thereon, of flexible lateial feedingmechanism therefor including a plurality of relatively rotatable cabledrums disposed on transverse axes on opposite sides' thereof, aplurality of flexible feeding members one wound on and individual toeach of said drums and disposable laterally, and guiding means disposedon said machine and cooperating with said flexible feeding members, saidmechanism havingprovision for feeding said machine under the propulsionof different drums laterally in one direction during rotation of saidcutter chain in one direction and in the opposite direction duringrotation of said chain in the opposite direction and provision wherebyduring latsoY eral feeding in different directions a different flexiblefeeding member acts as the advancing member while its fellow acts as thereceding member.

5l. The combination with a mining machine yslidable on a mine bottom andhaving reversible cutting mechanism including a rigid stationary cutterbar anda rotatable cutter chain thereon, of flexible lateral feedingmechanism therefor includingaplurality of relatively rotatable cabledrums of the same diameter, rotatable on transverse axes, and disposedon opposite sides of` said machine, a plurality of flexible feedingmembers one wound on andindividual to each of said drums and disposablelaterally, and guiding means disposed on said machine and cooperatingwith said flexible feeding inembers, said` mechanism having provisionfor lfeeding said machine under the propulsion of different drumslaterally in one direction during rotation of said cutter chain in'onedirection and in the opposite direction during rotation of said cutterchain in the opposite direction and provision whereby during lateralfeeding in different directions a different flexible feeding memberactsas the advancing member while its fellow acts as the recedingmember.

In testimony/,whereof 1 affix my signature.

` MORRIS P. HOLMES.

CERTIFICATE en Gemeenten.

Parent N0. 1,662,794. A Granted March is, 1928, to

MORRIS P. HOLMES.

It is hereby certified that errer appears in the printen? specificationof the above numbered patent requiring cerreetien as folien/e: Page l,ine 19, for the werd "mechanism" read "meehanisms"; page 2, line Sii,'tot the werd "is" read "its"; line 64, for the number "5D" read "49",vand iine 68, for the number "49" read "50"; page 5, line 35, claim 12,strike out the wor "Shatt" and insert the same to'fnllow after the werd"disposed" in iine 3ft; page 8, iine 98, claim 45. fer the werd"zeative" read "reiativeiy"; page 9, Eine 63, claim 49, after the word"drums" strike out the comma; and that the said Letters Patent should beread with these correctens thetein that the same may con form to therecord ofthe case in the Patent Office.

Signed and sealed this 1st day of May, A. D. 1928.

M. J. Moore, (Seal) Acting Commissioner of Patentse

